This video explores different methods that can be use to amplify a force, and focuses on three types of machine - levers, pulleys and gears. The amplification of a force is called mechanical advantage ...

When you pull the opposite end of the rope, the pulley mechanism changes the direction of the force applied, which lifts a load like this. The more pulley wheels you add to the mechanism ...

Various pulleys with different degrees of mechanical advantage (1:1, 1:2, and 1:4) can be used with different masses and a newton scale to perform a quantitative demonstration. Mount the rod ...